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Convert Certificates from PFX to PEM

This artice shows how to extract all the certificates and key file from .pfx file using openssl and remove any password if required.

Conversion to a combined PEM file

To convert a PFX file to a PEM file that contains both the certificate and private key, the following command needs to be used:

# openssl pkcs12 -in filename.pfx -out cert.pem -nodes

Conversion to separate PEM files

We can extract the private key form a PFX to a PEM file with this command:

# openssl pkcs12 -in filename.pfx -nocerts -out key.pem

Exporting the certificate only:

# openssl pkcs12 -in filename.pfx -clcerts -nokeys -out cert.pem

Removing the password from the extracted private key:

# openssl rsa -in key.pem -out server.key

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